Answer:
The noble as structures attained are helium and argon
Explanation:
The electron configuration of chlorine atom is 1s²2s²2p⁶3s²3p⁵
The elecron configuation of hydrogen is 1s¹
The electron configuration of argon atom is 1s²2s²2p⁶3s²3p⁶
The elecron configuation of helium gas is 1s²
Therefore, in the hydrogen chloride molecule the hydrogen and the chlorine each share one electron from the other atom to attain the the stable noble gas structure of helium for hydrogen and argon for chlorine.